单项选择题
A. Memory is bad or not seated.
B. Fans are failing.
C. Power supply needs to be replaced.
D. CD-ROM is faulty and needs to be replaced.
单项选择题 A user reports their system is displaying an error message ‘NTLDR is missing’. Which of the following is the MOST likely cause for this error?（）
单项选择题 Which of the following steps enables offline files in Windows 2000 and Windows XP?（）
多项选择题 A user would like to have a roaming profile configured. Which of the following is necessary when setting up a roaming profile? （）(Select TWO).